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In practical applications, fixing a fluorescent sensor on a solid composite film matrix can settle the boundaries of keeping the sensor in the solution state. Herein, we first presented a preparation of anime-response membrane by utilizing the edible gelatin as a film-forming skeleton to immobilize the dual phenazine derivative (PD-6), acting as amine-responsive functional units to fabricate a novel solid sensor. In order to ensure the sensor (PD-6 film) is available in the actual application, the mechanical properties, anime-responsive performance, and further application for monitoring shrimp freshness were fully characterized. Those observations indicated that the PD-6 film not only enhanced the sensitivity to anime, but also strengthened the application potential as a solid fluorescent sensor with flexible recyclability and favorable antibacterial properties. It is hoped that this valuable strategy could open a new avenue to overcome the application limitations of the sensor in the solution state. [ABSTRACT FROM AUTHOR]

• A novel biogenic amine-responsive platform (P-N) based on self-assembly property of phenazine derivative was fabricated. • The prominent characteristics revealed that the P-N could not only present strong AIE effect, but also endow excellent sensing properties of the multiphase examining. • Those observations demonstrated the P-N exhibited high sensitivity to amine and yielded an excellent proof-of-concept smart label in supervising the meat spoilage. • Such a novel fabrication strategy is expected to offer some guidance to develop various smart food packaging label for examining food freshness. Smart label serving as a response to a particular stimulus (e.g., biogenic amines) endow great potential to monitor the storage conditions and food freshness. Therefore, the development of smart food packaging for supervising the degree of food decay in real-time is of great importance in food safety. To this endeavor, herein we successfully fabricated a novel biogenic amine-responsive platform (P-N) based on supramolecular host-guest interaction, exploiting self-assembly properties of phenazine derivatives (PY) and naphthalene diamide (NDI) induced by hydrogen bond. Taking advantage of this feature, we investigated the prominent performance of this biogenic amine-responsive platform (P-N), involving in feasible fabrication pathway, specific response to biogenic amine, persistent stability and further application as a smart label for motoring meat spoilage. Those observations demonstrated that the P-N could self-assembly into well-organized rodlike structure showing strong AIE effect, not only exhibiting high sensitivity and great potential in the practical application, but also yielding an excellent proof-of-concept smart label in supervising the meat spoilage. Such a novel fabrication strategy is expected to provide some guidance to develop various smart food packaging label for motoring food freshness. [ABSTRACT FROM AUTHOR]